<template>
  <div
    v-if="showTag"
    class="avue-tags"
    @click="contextmenuFlag=false"
  >
    <!-- tag盒子 -->
    <div
      v-if="contextmenuFlag"
      :style="{left:contentmenuX+'px',top:contentmenuY+'px'}"
      class="avue-tags__contentmenu"
    >
      <div
        class="item"
        @click="closeOthersTags"
      >关闭其他
      </div>
      <div
        class="item"
        @click="closeAllTags"
      >关闭全部
      </div>
    </div>
    <div
      :class="{'avue-tags__box--close':!website.isFirstPage}"
      class="avue-tags__box"
    >
      <el-tabs
        v-model="active"
        :closable="tagLen!==1"
        type="card"
        @contextmenu.native="handleContextmenu"
        @tab-click="openTag"
        @edit="menuTag"
      >
        <el-tab-pane
          v-for="item in tagList"
          :key="item.value"
          :label="item.label"
          :name="item.value"
        />

      </el-tabs>
      <el-dropdown class="avue-tags__menu">
        <el-button
          type="primary"
          size="mini"
        >
          更多
          <i class="el-icon-arrow-down el-icon--right" />
        </el-button>
        <el-dropdown-menu slot="dropdown">
          <el-dropdown-item @click.native="closeOthersTags">关闭其他</el-dropdown-item>
          <el-dropdown-item @click.native="closeAllTags">关闭全部</el-dropdown-item>
        </el-dropdown-menu>
      </el-dropdown>
    </div>

  </div>
</template>
<script>
import { mapGetters, mapState } from 'vuex';
// import { aesDecrypt, aesEncrypt } from '@/util/encryption';
export default {
  name: 'Tags',
  data() {
    return {
      active: '',
      contentmenuX: '',
      contentmenuY: '',
      contextmenuFlag: false,
    };
  },
  computed: {
    ...mapGetters(['tagWel', 'tagList', 'tag', 'website']),
    ...mapState({
      showTag: (state) => state.common.showTag,
    }),
    tagLen() {
      return this.tagList.length || 0;
    },
  },
  watch: {
    tag() {
      this.setActive();
    },
    contextmenuFlag() {
      window.addEventListener('mousedown', this.watchContextmenu);
    },
  },
  mounted() {
    this.setActive();
  },
  methods: {
    watchContextmenu() {
      if (!this.$el.contains(event.target) || event.button !== 0) {
        this.contextmenuFlag = false;
      }

      window.removeEventListener('mousedown', this.watchContextmenu);
    },
    handleContextmenu(event) {
      let target = event.target;
      // 解决 https://github.com/d2-projects/d2-admin/issues/54
      let flag = false;
      if (target.className.indexOf('el-tabs__item') > -1) flag = true;
      else if (target.parentNode.className.indexOf('el-tabs__item') > -1) {
        target = target.parentNode;
        flag = true;
      }
      if (flag) {
        event.preventDefault();
        event.stopPropagation();
        this.contentmenuX = event.clientX;
        this.contentmenuY = event.clientY;
        this.tagName = target.getAttribute('aria-controls').slice(5);
        this.contextmenuFlag = true;
      }
    },
    // 激活当前选项
    setActive() {
      this.active = this.tag.value;
    },
    menuTag(value, action) {
      if (action === 'remove') {
        const { tag, key } = this.findTag(value);
        this.$store.commit('DEL_TAG', tag);
        if (tag.value === this.tag.value) {
          const tagToOpen = this.tagList[key === 0 ? key : key - 1]; // 如果关闭本标签让前推一个
          this.openTag(tagToOpen);
        }
      }
    },
    openTag(item) {
      let tag;
      if (item.name) {
        tag = this.findTag(item.name).tag;
      } else {
        tag = item;
      }
      // let value = '';
      // try {
      //   value = aesDecrypt(tag.value);
      // } catch (error) {
      //   value = tag.value;
      // }
      const value = tag.value;
      // if (
      //   tag.query &&
      //   tag.query.src &&
      //   (tag.query.src.includes('http') || tag.query.src.includes('https'))
      // ) {
      //   tag.query.src = aesEncrypt(tag.query.src);
      // }
      this.$router
        .push({
          path: this.$router.$avueRouter.getPath({
            name: tag.label,
            src: value,
          }),
          query: tag.query,
        })
        .catch(() => {});
    },
    closeOthersTags() {
      this.contextmenuFlag = false;
      this.$store.commit('DEL_TAG_OTHER');
    },
    findTag(value) {
      let tag, key;
      this.tagList.map((item, index) => {
        if (item.value === value) {
          tag = item;
          key = index;
        }
      });
      return { tag: tag, key: key };
    },
    closeAllTags() {
      this.contextmenuFlag = false;
      this.$store.commit('DEL_ALL_TAG');
      this.$router.push({
        path: this.$router.$avueRouter.getPath({
          src: this.tagWel.value,
        }),
        query: this.tagWel.query,
      });
    },
  },
};
</script>

